Question

the angles A,B,C and. D of quadrilateral ABCD are in ratio 1 :3:7:9. find the measure of each angle​

Answer 1

Answer:

the angles r 18,54,126,162

Step-by-step explanation:

The sum of all angles of a quadrilateral is 360°

So,

1x+3x+7x+9x=360

20x=360

x=360/20

x=18

Now,

1x=1×18=18

3x=3×18=54

7x=7×18=126

9x=9×18=162